package com.sky.service.impl;

import com.sky.context.BaseContext;
import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.ShoppingCart;
import com.sky.mapper.DishFlavorMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.ShoppingCartService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class ShoppingCartServiceImpl implements ShoppingCartService {
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private DishFlavorMapper dishFlavorMapper;
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Override
    public void add(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart=new ShoppingCart();
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        //获取该购物车的使用人
        shoppingCart.setUserId(BaseContext.getCurrentId());
        //判断当前商品是否已经在购物车中
          List<ShoppingCart> list= shoppingCartMapper.list(shoppingCart);
        System.out.println(list);
    if (list !=null && list.size()==1){
        //如果存在数量加一
        shoppingCart = list.get(0);
        shoppingCart.setNumber(shoppingCart.getNumber()+1);
        shoppingCartMapper.update(shoppingCart);
    }else{
        //如果不存在  将其加入数量为一
        Long dishId = shoppingCartDTO.getDishId();
        if (dishId!=null){
            //添加的是菜品
            Dish dish = dishMapper.getById(dishId);
            shoppingCart.setName(dish.getName());
            shoppingCart.setImage(dish.getImage());
            shoppingCart.setAmount(dish.getPrice());
            //shoppingCartMapper.insert(dish);
        }
        else {
            //添加的是套餐
            Setmeal setmeal = setmealMapper.getById(shoppingCart.getSetmealId());
            shoppingCart.setName(setmeal.getName());
            shoppingCart.setImage(setmeal.getImage());
            shoppingCart.setAmount(setmeal.getPrice());
        }
        shoppingCart.setNumber(1);
        shoppingCart.setCreateTime(LocalDateTime.now());
        shoppingCartMapper.insert(shoppingCart);
    }



    }

    @Override
    public List<ShoppingCart> list() {
        ShoppingCart shoppingCart=new ShoppingCart();
        shoppingCart.setUserId(BaseContext.getCurrentId());
       return shoppingCartMapper.showShoppingCart(shoppingCart);
    }

    @Override
    public void clean() {
        shoppingCartMapper.clean(BaseContext.getCurrentId());
    }

    @Override
    public void sub(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart=new ShoppingCart();
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        //获取该购物车的使用人
        shoppingCart.setUserId(BaseContext.getCurrentId());
        //判断当前商品是否已经在购物车中
        List<ShoppingCart> list= shoppingCartMapper.list(shoppingCart);
        if (list !=null && list.size()==1) {
            //如果存在数量加一
            shoppingCart = list.get(0);
            shoppingCart.setNumber(shoppingCart.getNumber() - 1);
            shoppingCartMapper.update(shoppingCart);
            if (shoppingCart.getNumber()==0){
                shoppingCartMapper.delete(shoppingCart);
            }
        }
//        }else{
//            //如果不存在  将其加入数量为一
//            Long dishId = shoppingCartDTO.getDishId();
//            if (dishId!=null){
//                //添加的是菜品
//                Dish dish = dishMapper.getById(dishId);
//                shoppingCart.setName(dish.getName());
//                shoppingCart.setImage(dish.getImage());
//                shoppingCart.setAmount(dish.getPrice());
//                //shoppingCartMapper.insert(dish);
//            }
//            else {
//                //添加的是套餐
//                Setmeal setmeal = setmealMapper.getById(shoppingCart.getSetmealId());
//                shoppingCart.setName(setmeal.getName());
//                shoppingCart.setImage(setmeal.getImage());
//                shoppingCart.setAmount(setmeal.getPrice());
//            }
//            shoppingCart.setNumber(1);
//            shoppingCart.setCreateTime(LocalDateTime.now());
//            shoppingCartMapper.insert(shoppingCart);
//        }

    }
}
